4
ELECTRICAL CONNECTIONS
34
H250 M40
www.krohne.com
03/2020 - 4000640706 - MA H250-M40 R06 en
4.2.4 ESK4-T pulse output
The pulse output B2 is a passive "open collector" output which is electrically isolated from the
current output and output B1. It can be operated as a low-resistance output or as a NAMUR
output.
The pulse width t
on
can be configured from 50...500 ms in the indicator menu.
INFORMATION!
The binary outputs can also be operated as pulse outputs. When using the binary outputs as a
pulse output, two separate signal circuits are required. Each signal circuit requires its own
power supply.
The total resistance
4
must be adapted so that the total current I
tot
does not exceed 100 mA.
Figure 4-10: Electrical connection of pulse output
1
Terminal for power supply - current output
2
Terminal B2
3
Flow measurement 4...20 mA
4
Pulse output load e.g. counter
5
Power supply for ESK4
6
Power supply for pulse output
Figure 4-11: Data for pulse output
1
f
max
= 10 Hz
2
t
on
3
t
off
